Mop head



FIG. 1 is a top-front-right perspective view of a mop head showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a left view thereof; and,

FIG. 7 is a right view thereof.

The broken lines in the drawings illustrate portions of the mop head which form no part of the claimed design. 

CLAIM The ornamental design for a mop head, as shown and described. 